Writing instrument



FIG. 1 is a front perspective view of a writing instrument showing mynew design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view.

The writing tip in broken lines is included to show a feature that formsno part of the claimed design.

CLAIM The ornamental design for a writing instrument, as shown anddescribed.